Resilient support



June 30, 1925. 1,543,769

E. M. HEWLETT ET AL RESILIENT SUPPORT Filed May 21, 1924 Fig; l.

v In\/ tors:

Edward Hewlett WaldO W. Willard;

3. 5 fi M Z' Their A-t-torneg P atented June 30, 1925.

UNITED STATE-I8 PATENT OFFICE,"

nnwa an MQHEWLETT AND wALDo w. wiLLAnn, or SCHENECTADY, mew YORK, AS-

' SIGNORS T esnnnannnncrmc comm, a CORPORATION or new YORK.-

n'nsnmnr snrron r.

Application aim as 21, 1924. Serial No. 714,e44.'

To all whom it mag concern:

Be it known that we, EDWARD M. HEW LETT and WALDO W. WILLARD, citizensof the United States, residing at Schenectady,

j is protected from shocks from all directions and-,.while beingmaintained normally ina definite positio More specifically our inventionrelates to a resilient support particularly adapted for instrumentsofprecision by means of which the instrument is resiliently supported torovided for independent movement'of the instrument with relation to itsmount as a protection fronr shocks, v v-hilebeing returned thereafteraccurately to a definite position of initial adjustment. In carrying outourinventio'n we provide a cone-shaped position defining member and amember resiliently seated on this cone-shaped memher. 'One of these'membersis attached to the mount while the other is attached to thesupported body; v

For a more complete understanding of v our invention, reference shouldbe had to g the accompanying drawing in which Fig.1

is an I elevation view in section -of a resilint support embodying ourinvention, While Fig. 2 is anelevation view on a redueed scale showingthe application of our invention to an instrumentvof recision,

Referring to Fig. 1 of the rawing, in carrying out our invention in oneform as applied to the hanging of asupported body 10 on a supportingbody or mount 11, we

provide a pin or rod 12 which is suitably secured to the supporting body11 so 'to-extend downward therefrom and normally be in a substantiallyvertical position. The pin 12.1naybe and is shown as secured .to thebody 11 by threading it and screwing it' into cooperating threads in thesupport peened over into at 16. e

The lower end of the enlarged portion 13 is provided with a suitablyshaped position defining surface 17, shown as bemg pone-shaped, havingits axis coincident with the longitudinal axis of pin .12. On the thesegrooves 15, as shown cone-shaped surface 17 is seated a sleeve 18, theupper end of the sleeve 18 being shaped in conformity. with the surface17.

The. sleeve 18; when properly seated, is concentric with the pm 12. Onthe upper end of the sleeve 18 is a flange 19 which has a close slidingfit in an outer sleeve 20 secured to the supported body 10. An internalflange 21 is provided in the upper end of sleeve 20,against which flan e19 is held by a' helical 'spring'22, the ower end of which rests on aninternal flange 25 secured to the lower end of sleeve 20. As shown, theflange 25 is inthe form of a screw plug which is screwed into the lowerend of sleeve 20, suitable threads being'provided. A central aperture 26is provided in the plug 25 through which the sleeve 18 extends and inwhich the sleeve has-a close sliding fit. Bearing against the loweraface of plug 25 is alhelical spring 27,the lower end of which is seatedon a washer 28 which in turn restsagainst nuts 29 on the lower end ofpin 12. As shown, wthexplug 25 may be provided with suitable recessordepression 30, to receive the end' of spring 27 and to provide a seatfor it.

The spring 27 is slightly larger in diameter than the sleeve 18 so thatthe sleeve is free to move axially of the spring 27 without touchingit." It will observed that the spring 27 acts a ainst the spring 22tending to compress it,

springj 27 and hence is not compressed thereby. g a

As shown, the sleeve 20 may be provided with external threads 31 andsecured to the supported, member 10 by screwing it into cooperatinthreads 32 on the supported member, set screw 33 ma, be provided a I butthespring 22 is made considerably stronger than thein a depression 14formed for it in the body ingbodyu-"The pin* is provided with anenlarged base portion 13 which is seated justd' position. 7' Thesupported member 10'- may' be leveled or otherwise adjusted byfloosening screw 33 and turning sleeve 20 in the proper direction. a

It is contemplated that a plurality of 11. To. prevent turning andconsequently loosening of .the pin, grooves15 extending lengthwise ofthe pin are provided sin the portion 13 and the metal ofthe body 11 isspring supports of the type shown in Fig.

, in membel lll to lock the sleeve 20 in ad- 1. will be used insupporting an instrument of precision. As. applied to a periscopicsighting instrument 35 hung from an over- 7 head supporting-wall 36(Fig. 2), three 6 spring supports 37, 38 and 39 may be used,

these supports bein spaced at equal distances about the device 35. I

In the event that sudden shocks are applied to the supporting body 11,the springs 1 22 and 27 will yield to. absorb the shocks and thusprevent injury of the instrument 35,

the spring 22 absorbing shocks applied to, the supporting body in adownward direction and the spring 27 absorbing shocks applied to thesupporting body in an upward direction. One of the functions of thecone-shaped seat 17 is to cause a com- -ponent of shocks-having alateral direction L to .be applied to the spring 22 and thereby 20 beabsorbed. Thus, in case a lateral shock, or any lateral component of ashock, is applied to the slipportingbody 11, the in 12 {will bedisplaced laterally with relation to if the sleeve 18 due to the inertiaof the sup- 3 ported body-'10. As this displacementtakesplace, it beobserved that the sleeve 18 will be forced downward by reason of theinclined conic bearing surfaces between the sleeve and pin, wherebyspring 22 will be 5 compressed. After the energy'of the shock has beendissipated'the sleeve 18 returns to its original position which isdefined by its one-shaped seat. The osition of the sup- P ported body isthus do itely defined ina -lateral direction. In a vertical directionthe position of the supported body is defined by the seating. of sleeve18 on flange 21-.

" k While we have described our invention as embodied in concrete form'and as operating '40 in a specific manner in accordance with therdvisionsof the patent statutes, itrshould E understood that we donotlimit our in-' v ntion thereto. since various modifications thereofwill suggest themselves to those 5 skilled in theart without departing,fromthe spirit "of our invention, the scope of which isset forth in theannexed claims. ,What'we claim as new and "desire to secure by LettersPatent of the United States, 1s,-

Y 1. A resilient support comprising two members carried by the supportedand sup- .inemberv encircling said pin cooperating porting bodiesrespective and resilient means for holding said members in engage- 5ment, the coopgrating bearing surfaces of said members in inclined w1threspect to the direction of t e iorce applied by said resilient means,whereby lateral shocks are applied -to said resilient means.

1 2. A resilient suplport comprising two ufiembers carried .by t esupported and supporting. bodies 3 respectively, and resilient means forholding said members in engage ment, the cgoperating bearing surfaces ofsaid members being beveled, whereby lateral shocks are applied to saidresilient .means.

3. A resi ient support comprising two members ,carriedby the su portedand su porting bodies respective one of sing members being provided witha cone-sha sea-t for the other member, and resilient means for holdingsaidmembers in engagement, whereby lateral shocks are applied to saidresilient'means.

v 4. Av resilient support comprising two members provided with inclinedcooperating bearing surfaces, a connectionbetweenone of said members andthe supporting body, a

ieldable connection betweenthe other memer and the supported body,- andresilient means carried by said first member acting on the supportedbody so as to hold said inclined surfaces in engagement and absorbshock-causing lateral displacement thereof.

5. A resillent support comprising two members provided with cone shapedcooperating bearing surfaces, a connection between one of said membersand the supporting body, a-seat on the supported body for the othermember, a spring for holding said second member to said seat, and asecond spring carried bysaid first member actin on said supported bod inopposition to sai first spring so as to, old said members in engagement.

'6. A resilientsupport comprising a pin depending from the supportingbody pro.- vided'with a cone-shaped portion, a sleeve carried by thesupported body cooperating with said cone-shaped portion, and a springon said pin acting on said supported body so as to hold saidsleeveseated on said coneshaped portion.

7. A resilient support comprising a pin depending from the sup ortingbody pro-- vi ed with acone-shape portion, a sleeve on said pincooperating with said coneshaped portion resiliently mounted on thesupported body, and a spring on said pin acting on the supported body soas to hold k i said sleeve seated on said cone-shaped p.0r-"

tiont 8. A resilient support comprising a pin de ndingfrom the sup oftinbody providfd with a cone-shaped porti on, a sleeve inengagement with,said cone-shaped portion. Y

f In witness whereof, we have hereunto set our hands this 20th day ofMay, 1924.

a EDWARD M. HEWLETT.

WALDO W- WILLARD.

